Computer Programming with fun: 2017

Sunday 27 August 2017

Fibbonaci series in java

package fibonacciexample1;

import java.util.Scanner;
class FibonacciExample1{
public static void main(String args[])
{

Scanner b = new Scanner(System.in);
int n1=0,n2=1,n3,i,count;
System.out.println("Enter limit of series");
count = b.nextInt();
System.out.print(n1+" "+n2);//printing 0 and 1

for(i=2;i<count;++i)//loop starts from 2 because 0 and 1 are already printed
{
n3=n1+n2;
System.out.print(" "+n3);
n1=n2;
n2=n3;
}

}}

Find prime numbers in java

package primeexample;
import java.util.Scanner;
class PrimeExample{
public static void main(String args[]){
Scanner b = new Scanner(System.in);
int i,m=0,flag=0;
int n;
System.out.println("Enter an integer");
n=b.nextInt();
m=n/2;
for(i=2;i<=m;i++){
if(n%i==0){
System.out.println("Number is not prime");
flag=1;
break;
}
}
if(flag==0)
System.out.println("Number is prime");
}
}